JP2014077118A - Emulsifier-containing fat composition, and method for producing the emulsifier-containing fat composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emulsifier-containing fat composition in which the precipitation of emulsifier components, e.g., upon preparation (addition, mixing or the like of an emulsifier and fat), the preservation and conveyance of the emulsifier-containing fat composition is improved, and a method for producing the emulsifier-containing fat composition.SOLUTION: In the method for producing an emulsifier-containing fat composition comprising one or more kinds of emulsifiers selected from sucrose fatty acid ester, polyglyceryl fatty acid ester and sorbitan fatty acid ester, an acid treatment step is performed and the content of soap in the emulsifier-containing fatty composition is reduced to 5 ppm or lower to produce an emulsifier-containing fatty composition. The acid treatment step for the emulsifier may be performed before mixing of the emulsifier and fat or upon the mixing or after the mixing.

Description

  The present invention relates to an emulsifier-containing oil and fat composition and a method for producing an emulsifier-containing oil and fat composition. Specifically, the present invention, when producing an emulsifier-containing oil and fat composition using an emulsifier containing a soap component, is prepared by reducing the soap component (addition and mixing of emulsifiers and fats, etc.), during storage and transportation It is related with the manufacturing method of the emulsifier containing oil-fat composition which can improve precipitation of a part of emulsifier component in etc., and an emulsifier containing oil-fat composition.

  Various types of emulsifiers are used in applications such as improved cold resistance, improved cooking ability, improved mold release, and antibacterial properties in oil and fat compositions that do not contain an aqueous phase, such as stir-fried oil, frying oil, and spray oil. In particular, sucrose fatty acid esters, polyglycerin fatty acid esters, and sorbitan fatty acid esters have a good flavor and are widely used (Patent Documents 1 to 3). However, fats and oils containing emulsifiers tend to absorb moisture, the water in the fats and oils increases, and the emulsifier may precipitate together with the water. For example, sucrose fatty acid esters tend to precipitate highly hydrophilic components such as hydrophilic sucrose monofatty acid esters and sucrose difatty acid esters in fats and oils. Furthermore, even when the moisture does not increase, when the product is stored for a long period of time, a problem may occur in which some hydrophilic components gather and precipitate at the oil / fat interface. Moreover, in the case where nitrogen or the like is blown for a long period of time when the oil and fat and the emulsifier are mixed, precipitation may occur, and it is necessary to cope by removing the precipitate. These phenomena may occur in the same manner with polyglycerin fatty acid esters and sorbitan fatty acid esters.

  Sucrose fatty acid esters, polyglycerin fatty acid esters, and sorbitan fatty acid esters synthesize esters using alkali as a catalyst in the production process (see Patent Document 4). These alkali catalysts react with raw fatty acids or fatty acid alkyl esters to form fatty acid soaps. Since these fatty acid soaps are also emulsifiers, they are expected to affect the emulsifying action, but there has been no knowledge that they affect the precipitation of the emulsifier.

JP 2000-290683 A JP 2000-290684 A JP 2002-524027 A Japanese Patent Laid-Open No. 10-17588

  The present invention provides an emulsifier-containing oil / fat composition in which precipitation (addition / mixing of emulsifier and oil / fat), storage of emulsifier / oil-containing fat / oil composition, precipitation of some emulsifier components during transportation, etc. is improved and the emulsifier-containing composition It is providing the manufacturing method of an oil-fat composition.

  In order to achieve the above object, the present inventors have found that the above object can be solved by reducing the soap content in the emulsifier-containing oil and fat composition, and have completed the present invention. Specifically, the following are provided.

(1) In the method for producing an emulsifier-containing oil / fat composition containing one or more emulsifiers selected from sucrose fatty acid ester, polyglycerin fatty acid ester, and sorbitan fatty acid ester, an acid treatment step is performed, and the emulsifier-containing oil / fat composition contains A method for producing an emulsifier-containing oil and fat composition, wherein the soap content is reduced to 5 ppm or less.
(2) The production method according to (1), wherein the emulsifier-containing fat composition contains 0.1 to 10.0% by mass of the emulsifier.
(3) HLB value of the said emulsifier is 0-9, The manufacturing method as described in (1) or (2) characterized by the above-mentioned.
(4) The method according to any one of (1) to (3), wherein the acid treatment step uses an acid selected from citric acid, malic acid, acetic acid, lactic acid, ascorbic acid, and phosphoric acid.
(5) The production method according to any one of (1) to (3), wherein the acid treatment step uses an adsorbent selected from a cation exchange resin, activated clay, and acid clay.
(6) The method according to any one of (1) to (5), wherein the acid treatment step is a step after mixing of an emulsifier and an oil.
(7) The said acid treatment process is a process before mixing of an emulsifier and fats and oils, The manufacturing method in any one of (1)-(5) characterized by the above-mentioned.
(8) An emulsifier-containing oil and fat composition obtained by the production method according to any one of (1) to (7) and having a soap content of 5 ppm or less.

  According to the present invention, in the method for producing an emulsifier-containing oil / fat composition containing one or more emulsifiers selected from sucrose fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, an acid treatment step is performed, and the emulsifier-containing oil / fat composition By reducing the soap content in the product to 5 ppm or less, precipitation of hydrophilic components can be suppressed. Further, it is not necessary to remove precipitates in the emulsifier-containing oil / fat composition product during preparation such as when an emulsifier is added / mixed to the oil / fat, during storage of the emulsifier-containing oil / fat composition, and during transportation.

  The present invention will be described in detail below. The emulsifier-containing oil / fat composition of the present invention performs an acid treatment step in the method for producing an emulsifier-containing oil / fat composition containing one or more emulsifiers selected from sucrose fatty acid ester, polyglycerin fatty acid ester, and sorbitan fatty acid ester, The soap content in the emulsifier-containing oil / fat composition is reduced to 5 ppm or less. Generally, in fats and oils in which an emulsifier is dissolved, an emulsifier component that precipitates during storage and transportation is a part of the hydrophilic component in the emulsifier and a small amount. At this time, if there is a soap component present in the emulsifier-containing oil or fat composition, precipitation of the emulsifier is promoted, so it is necessary to reduce the soap component.

  In the present invention, one or more emulsifiers selected from sucrose fatty acid esters, polyglycerin fatty acid esters, and sorbitan fatty acid esters can be used, and commercially available products can be used. Polyglycerin and sorbitan can be used in which fatty acid or fatty acid alkyl ester is reacted with an alkali catalyst. The alkali catalyst used in the synthesis reacts with a fatty acid or the like, and remains at about 1000 to 20000 ppm as a fatty acid soap.

  In addition, the soap content in the present invention is a value measured by “Japanese Oil Chemical Society established standard oil analysis test method (2.6.2-1996 soap)”, sodium soap present in the emulsifier-containing oil and fat composition, It represents potassium soap or the like as sodium oleate.

  In addition, it is preferable to contain 0.1-10 mass% in total of 1 or more types of emulsifiers chosen from sucrose fatty acid ester, polyglycerin fatty acid ester, and sorbitan fatty acid ester used by this invention. Generally, in fats and oils in which an emulsifier is dissolved, the amount of the emulsifier component that precipitates during preparation, storage, and transportation is small with respect to the emulsifier (for example, 0.1 to 7% by mass or less based on the amount of the added emulsifier). If the amount of the emulsifier is less than 0.1% by mass with respect to the emulsifier-containing oil or fat, precipitation does not occur or does not cause a problem. Preferably, the amount of the emulsifier is 0.1 to 5.0% by mass in the emulsifier-containing oil and fat composition, more preferably 0.3 to 1.5% by mass, and most preferably 0.5 to 1.2%. % By mass.

  In the present invention, sucrose fatty acid ester, polyglycerin fatty acid ester and sorbitan fatty acid ester are used, but other emulsifiers such as monoglycerin fatty acid ester, organic acid monoglyceride, polysorbate, propylene glycol fatty acid ester, lecithin and the like can be blended. it can. The amount is preferably 0.1 to 10% by mass in total of emulsifiers including one or more emulsifiers selected from sucrose fatty acid esters, polyglycerin fatty acid esters and sorbitan fatty acid esters.

  The emulsifier used in the present invention preferably has an HLB value of 0 to 9 from the viewpoint of solubility in fats and oils. The smaller the HLB value (the Griffin calculation method is used in the present invention. Griffin formula: HLB = 20 × {(molecular weight of hydrophilic portion) / (total molecular weight)}), the stronger the lipophilicity. In the present invention, the HLB value of the emulsifier is more preferably 7 or less from the viewpoint of solubility in fats and oils. The most preferred HLB value is 0-3. In addition, since the HLB value of an emulsifier may be additive, an HLB value of 9 or more may be included, but the average HLB value of the added emulsifier is preferably 9 or less. It is preferable not to add an emulsifier having an HLB value of 9 or more.

  The emulsifier used in the present invention is likely to be crystallized when there are many saturated fatty acids in its constituent fatty acids, so that a large amount of unsaturated fatty acids is preferable for preventing crystallization of the emulsifier, oleic acid, linoleic acid, linolenic acid, An unsaturated fatty acid such as erucic acid is preferred. The unsaturated fatty acid is preferably 50% by mass or more in the constituent fatty acid of the emulsifier, and more preferably 70% by mass or more in the constituent fatty acid of the emulsifier.

  The fats and oils used in the present invention are not particularly limited, and animal and vegetable fats and oils, fractionated oils, mixed oils, hydrogenated oils, and the like can be used. Animal and vegetable oils include, for example, soybean oil, rapeseed oil, high oleic rapeseed oil, sunflower oil, high oleic sunflower oil, olive oil, safflower oil, high oleic safflower oil, corn oil, cottonseed oil, rice oil, beef fat, milk fat, fish oil, palm Oil, palm oil, palm kernel oil, etc. are mentioned. Since what solidifies at 20 degreeC needs to melt | dissolve by heating at the time of use, use of the liquid oil which is liquid at 20 degreeC is preferable. Moreover, since it is preferable to perform mixing with an emulsifier after a refinement | purification process, it is preferable to use refined fats and oils.

  The fats and oils used in the present invention are preferably contained in the emulsifier-containing fat and oil composition in an amount of 90% by mass or more, and more preferably 95.0 to 99.9% by mass. 98.5-99.7 mass% is further more preferable, and 98.8-99.5 mass% is the most preferable.

  The emulsifier-containing oil / fat composition can contain components (food additives, etc.) used for other general edible oils and fats, if necessary, in addition to the above-mentioned emulsifiers and oils / fats. Examples of these components include an oxidation / deterioration inhibitor and a crystal modifier. Examples of the oxidation / deterioration inhibitor include tocopherols, flavone derivatives, kojic acid, gallic acid derivatives, catechins and esters thereof, fucic acid, gossypol, sesamol, terpenes, and silicone. Spices and coloring components can also be added. Examples of spices include capsaicin, anethole, eugenol, cineol, gingerone and the like. Examples of the coloring component include carotene and astaxanthin.

  The above components are preferably added to the oil and fat in advance, but may be added to the oil and fat at the same time as or before or after the emulsifier.

  An emulsifier and an oil / fat are mixed to obtain an emulsifier-containing oil / fat composition. However, it is important that the emulsifier is uniformly dissolved, and the mixing method is not particularly limited. For example, as a mixing method, after diluting an emulsifier with fats and oils to obtain a diluted solution, a method of adding the diluted solution to the fats and oils is preferable. In general, since the emulsifier is in a paste form or has a high viscosity, it is preferably heated to 50 to 120 ° C. as necessary. When adding emulsifiers to fats and oils, add the emulsifiers to the fats and oils in the tank with the propeller, combine with pipes with pumps on the top and bottom or left and right of the tank, add and mix the emulsifiers while circulating the fats and oils There are methods. Mixing may be performed simultaneously with the addition of the emulsifier, or may be performed after the addition. Further, nitrogen may be blown into the mixed solution for the purpose of preventing oxidation or improving the efficiency of stirring. Here, when a large amount of bubbles is generated, precipitation may occur. Therefore, when the acid treatment step is not performed in advance, it is preferable to restrict the blowing of nitrogen or the like.

<Acid treatment process>
In the present invention, the amount of soap remaining due to the synthesis reaction of sucrose fatty acid ester, polyglycerin fatty acid ester, and sorbitan fatty acid ester can be reduced in the acid treatment step. As the acid, in addition to an acid selected from citric acid, malic acid, acetic acid, lactic acid, ascorbic acid and phosphoric acid, an adsorbent having an acidic surface can be used. Citric acid, malic acid, lactic acid, ascorbic acid and the like may be added as a hydrate or an aqueous solution, but when the moisture content of the fat or oil increases remarkably, it is preferably carried out while removing the moisture under reduced pressure. Further, it may be added as a solid. After the addition, the precipitated acid and salt are filtered if necessary. Further, when citric acid, malic acid, lactic acid, ascorbic acid or the like is used directly without making it into an aqueous solution, the acid can be filled in a column and an emulsifier or an emulsifier-containing oil and fat composition can be passed therethrough.

  The adsorbent having an acidic surface is preferably, for example, a cation exchange resin, activated clay, or acid clay.

  An acid treatment process performs an acid treatment process with respect to an emulsifier, Then, an emulsifier and fats and oils are mixed, and an emulsifier containing fats and oils composition is obtained. Alternatively, when the emulsifier and the fat / oil are mixed, an acid treatment step is simultaneously performed to obtain an emulsifier-containing fat / oil composition. Or you may perform an acid treatment process, after mixing an emulsifier and fats and oils. In addition, since an emulsifier has a high viscosity, it is preferable to heat at 50-120 degreeC and to perform an acid treatment.

  In the emulsifier-containing oil / fat composition obtained in the present invention, the soap content in the emulsifier-containing oil / fat composition is preferably reduced to 5 ppm or less from the viewpoint of suppressing precipitation of the emulsifier. What is necessary is just to adjust the quantity of the acid used at an acid treatment process according to the amount of soap in an emulsifier suitably, Preferably it is preferable to use more than the molar equivalent of soap. In order to enhance the antioxidant effect on sucrose fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, tocopherol etc. and a trace amount of phosphoric acid may be added, but with the amount of phosphoric acid added for the purpose of enhancing the antioxidant effect The soap content in the emulsifier does not contribute much, and the soap content in the emulsifier-containing oil and fat composition does not exceed 5 ppm. Similarly, several tens of ppm of citric acid may be added at the end of the oil / fat refining process, but citric acid is often removed without dissolving it in the oil / fat, and there is almost no effect of reducing the soap content. The soap content in the emulsified oil / fat composition is more preferably 3 ppm or less, and still more preferably 2 ppm or less. Most preferably, it cannot be detected by the “Japan Oil Chemists' Society established standard oil and fat analysis test method (2.6.2-1996 soap)”.

  The emulsifier-containing oil and fat composition obtained in the present invention is used in a wide range of applications. For example, stir-fry (fried noodles, stir-fried vegetables, etc.), fried food (tempura, croquettes, tonkatsu, etc.), raw food (mayonnaise, dressing, etc.), spray application (spray oil on ingredients and heat in an oven or microwave), food It can be used as a release oil.

  EXAMPLES Next, although an Example and a comparative example are given and this invention is demonstrated in more detail, this invention is not restrict | limited at all to these.

<Comparative Example 1>
160 g of sucrose oleate having an HLB value of 1 (Ryoto sugar ester O-170: oleic acid purity of about 80%, manufactured by Mitsubishi Chemical Foods Co., Ltd.) was heated at 60 ° C. and sealed at 40 ° C. in a nitrogen atmosphere. The mixture was added to 1840 g of refined rapeseed oil (Nisshin Canola Oil: Nisshin Oillio Group, Inc.) while stirring with a propeller. Although the addition time was 2 minutes, the mixture was further stirred for 30 minutes with a propeller to obtain an emulsifier-containing oil and fat composition.

<Comparative Example 2>
160 g of sucrose oleate having an HLB value of 1 (Ryoto sugar ester O-170: oleic acid purity of about 80%, manufactured by Mitsubishi Chemical Foods Co., Ltd.) was heated at 60 ° C. and sealed at 40 ° C. in a nitrogen atmosphere. The mixture was added to 1840 g of refined rapeseed oil (Nisshin Canola Oil: Nisshin Oillio Group, Inc.) while stirring with a propeller. Although the addition time was 2 minutes, the mixture was further stirred with a propeller for 30 minutes. When nitrogen was blown (3 L / min) during propeller stirring, a small amount of precipitate was floating (precipitate was about 3 g).

<Example 1>
0.1% by mass of citric acid / monohydrate is added to the emulsifier-containing oil / fat composition of Comparative Example 1 with respect to the emulsifier-containing oil / fat composition, treated at 100 ° C. under reduced pressure (about 3000 Pa) for 1 hour, and filtered. did.

<Example 2>
16 g of citric acid / monohydrate was added to 200 g of sucrose oleate having an HLB value of 1 (Ryoto Sugar Ester O-170: oleic acid purity of about 80%, manufactured by Mitsubishi Chemical Foods Co., Ltd.), and the pressure was reduced at 100 ° C. ( It was treated at about 3000 Pa) for 1 hour and filtered. 160 g of citric acid-treated sucrose oleate was added to 19840 g of purified rapeseed oil (Nisshin Canola Oil: Nisshin Oillio Group, Inc.) sealed at 40 ° C. under a nitrogen atmosphere while stirring with a propeller. Although the addition time was 2 minutes, the mixture was further stirred with a propeller for 30 minutes. Nitrogen was blown (3 L / min) during propeller stirring.

<Comparative Examples 3-4>
As shown in Table 2, sucrose erucic acid ester with HLB value 2 (Ryoto Sugar Ester ER290: erucic acid purity about 90%, manufactured by Mitsubishi Chemical Foods Co., Ltd.), or sucrose oleic acid ester with HLB value 1 ( Ryoto sugar ester O-170: Purified rapeseed oil of 40 ° C. heated at 60 ° C. and sealed in a nitrogen atmosphere (Nisshin Canola Oil: Nisshin Oillio) The product was added to a group company) while stirring with a propeller. Although the addition time was about 5 seconds, the mixture was further stirred for 24 hours with a propeller to obtain an emulsifier-containing oil and fat composition.

<Example 3>
To the emulsifier-containing oil / fat composition of Comparative Example 3, 0.1% by mass of citric acid monohydrate was added to the emulsifier-containing oil / fat composition, followed by filtration to obtain an emulsifier-containing oil / fat composition.

<Example 4>
To the emulsifier-containing oil / fat composition of Comparative Example 4, phosphoric acid was added in an amount of 0.005% by mass relative to the emulsifier-containing oil / fat composition, followed by filtration to obtain an emulsifier-containing oil / fat composition.

<Comparative Example 5>
As shown in Table 3, sorbitan monooleate with an HLB value of 5.1 (Sunsoft No. 81S: manufactured by Taiyo Kagaku Co., Ltd.) and decaglycerin oleate with an HLB of about 7 were heated and mixed at 60 ° C. An emulsifier mixed solution was obtained. The emulsifier mixed solution was added to 40 ° C. refined rapeseed oil sealed in a nitrogen atmosphere (Nisshin Canola Oil: Nisshin Oillio Group Co., Ltd.) while stirring with a propeller. Stirring was carried out with a propeller for 24 hours to obtain an emulsifier-containing oil and fat composition.

<Example 5>
To the emulsifier composition of Comparative Example 5, 0.5% of activated clay (Galleon Earth: manufactured by Mizusawa Chemical Co., Ltd.) was added and stirred at 100 ° C. for 15 minutes while reducing the pressure. Then, it filtered and obtained the emulsifier containing oil-fat composition.

[Soap]
The soap content is measured by the “Standard Method for Analyzes of Oils and Fats Established by the Japan Oil Chemists' Society (2.6.2-1996 soap)”, and sodium soap, potassium soap, etc. present in the emulsifier-containing oil and fat composition as sodium oleate. It was expressed in ppm (mass ratio).

[Preservation test]
The states of the emulsifier-containing compositions of Comparative Examples 1 to 5 and Examples 1 to 5 were confirmed (the state immediately after preparation), filled in a 1000 g PET container, and stored for 3 months. In addition, when there existed a deposit in the state before a preservation | save, it filtered. The state after storage for 3 months (presence of precipitate) was confirmed. The results are shown in Tables 1-3.

[Fly aptitude]
Using 600 g of the emulsifier-containing composition, 5 pieces of tonkatsu were fried three times, and the foaming was compared with Nissin canola oil. As for tonkatsu, thigh meat (about 35 g / 1 cut) was put in the order of wheat flour, eggs and bread crumbs and fried at 180 ° C. for 4 minutes.

  According to the results in Table 1, it was found that the emulsifier-containing oil and fat compositions of Examples 1 and 2 suppressed the occurrence of precipitation without impairing fly suitability as compared with Comparative Examples 1 and 2. Moreover, it turned out that generation | occurrence | production of precipitation was suppressed compared with Comparative Examples 3-5 from Tables 2-3 from Tables 2-3.

Claims (8)

  In the method for producing an emulsifier-containing oil / fat composition containing one or more emulsifiers selected from sucrose fatty acid ester, polyglycerin fatty acid ester, and sorbitan fatty acid ester, an acid treatment step is performed, and the soap content in the emulsifier-containing oil / fat composition is obtained. A method for producing an emulsifier-containing oil and fat composition, characterized by being reduced to 5 ppm or less.   The manufacturing method according to claim 1, wherein the emulsifier-containing oil and fat composition contains 0.1 to 10.0% by mass of the emulsifier.   The method according to claim 1 or 2, wherein the emulsifier has an HLB value of 0 to 9.   The said acid treatment process uses the acid chosen from a citric acid, malic acid, an acetic acid, lactic acid, ascorbic acid, and phosphoric acid, The manufacturing method of any one of Claims 1-3 characterized by the above-mentioned.   The said acid treatment process uses the adsorption agent chosen from a cation exchange resin, activated clay, and acid clay, The manufacturing method of any one of Claims 1-3 characterized by the above-mentioned.   The said acid treatment process is a process after mixing of an emulsifier and fats and oils, The manufacturing method of any one of Claims 1-5 characterized by the above-mentioned.   The said acid treatment process is a process before mixing of an emulsifier and fats and oils, The manufacturing method of any one of Claims 1-5 characterized by the above-mentioned.   An emulsifier-containing oil and fat composition obtained by the production method according to any one of claims 1 to 7, wherein the soap content is 5 ppm or less.